U3-HV 4 HV Analog Inputs and 12 Flexible I/O (Digital Input, Digital Output, or LV Analog Input) Up to 2 Timers (Pulse Counting/Timing, PWM Output, Quadrature Input) Up to 2 Counters (32-Bits Each) 4 Additional Digital I/O 12-bit Analog Inputs (HV: 10 V or -10/+20 V, LV: 0-2.4 V or 0-3.6 V, SE or Diff.)